LEASES - Lease assets and liabilities (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Feb. 01, 2019
Assets and Liabilities, Lessee [Abstract]
Operating lease assets	$ 270,032	$ 341,200
Classification of operating lease assets	us-gaap:OperatingLeaseRightOfUseAsset
Total lease assets	$ 270,032
Current operating lease liabilities	$ 63,166
Classification current operating lease liabilities	us-gaap:OperatingLeaseLiabilityCurrent
Noncurrent operating lease liabilities	$ 249,040
Classification of noncurrent operating liabilities	us-gaap:OperatingLeaseLiabilityNoncurrent
Total lease liabilities	$ 312,206	$ 384,500